TE Connectivity AMP Connectors 643657-1 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 643657-1 is a 25-position single inline package (SIP) socket connector designed for through-hole mounting applications. This connector features tin-plated beryllium copper contacts with a 0.100" (2.54mm) pitch and operates across a temperature range of -55°C to 105°C. The product is classified as obsolete, necessitating identification of active equivalent components that maintain functional compatibility for replacement and new design applications.

Substiute Parts

643657-1

TE Connectivity AMP ConnectorsIn Stock: 1031643657-1 Datasheet

Current PartRFQ

25-0513-10

Aries ElectronicsIn Stock: 98025-0513-10 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 643657-1 is determined by strict adherence to the following critical parameters:

Mandatory Matching Parameters:

• Connector type: SIP socket configuration
• Position count: 25 positions in 1 x 25 arrangement
• Mating pitch: 0.100" (2.54mm)
• Post pitch: 0.100" (2.54mm)
• Mounting method: Through-hole solder termination
• Contact material (mating): Beryllium copper
• Housing flammability: UL94 V-0 rating
• RoHS compliance: ROHS3 compliant

Allowable Variations:

• Contact finish on mating surface (tin or gold plating)
• Contact finish on post (tin or alternative plating)
• Post contact material (beryllium copper or brass)
• Housing material composition (thermoplastic or polyamide variants)
• Termination post length (within mechanical tolerance)
• Operating temperature range (equal or extended)

The Aries Electronics 25-0513-10 meets all mandatory matching parameters while introducing allowable variations in contact finish and post material composition.

Parameter Comparison

Engineering Selection Recommendations

The Aries Electronics 25-0513-10 serves as a direct functional substitute for the obsolete TE Connectivity 643657-1 based on the following engineering criteria:

Compliance and Certification Alignment: Both connectors maintain UL94 V-0 flammability certification and ROHS3 compliance, ensuring regulatory compatibility in applications requiring these standards. The Aries Electronics component carries active product status, providing assured supply chain availability and manufacturing continuity.

Electrical and Mechanical Compatibility: The 25-position SIP configuration, 0.100" (2.54mm) pitch specification, and through-hole solder termination method are identical between both components. Beryllium copper mating contacts in both connectors ensure equivalent contact performance and durability.

Contact Finish Considerations: The Aries Electronics substitute employs gold plating on mating contacts (10.0µin thickness) compared to tin plating on the original component. Gold plating provides enhanced corrosion resistance and contact reliability in applications subject to environmental exposure or extended storage periods. The tin-plated post finish on the Aries component differs from the original beryllium copper post material; however, the brass post material with tin plating maintains solder compatibility and mechanical strength.

Thermal Performance: While the original component specifies an operating temperature range of -55°C to 105°C, the Aries Electronics substitute does not provide an explicit temperature specification. Applications requiring confirmed thermal performance across the full -55°C to 105°C range must verify thermal compatibility with the manufacturer.

Physical Dimensions: The termination post length differs by 0.005" (0.12mm) between components (TE: 0.130", Aries: 0.125"). This minor variation remains within standard PCB through-hole tolerance specifications and does not affect functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the Aries Electronics 25-0513-10 directly replace the TE Connectivity 643657-1 in existing designs?

A: Yes. Both connectors share identical SIP socket configuration, 25-position count, 0.100" (2.54mm) pitch, and through-hole solder termination. The physical footprint and electrical interface are compatible. The minor 0.005" difference in post length remains within standard PCB tolerance specifications.

Q: What is the significance of the gold plating on the Aries Electronics substitute?

A: Gold plating (10.0µin thickness) on the mating contacts provides superior corrosion resistance compared to tin plating. This finish is beneficial in applications exposed to humidity, temperature cycling, or extended storage. Gold plating does not affect electrical compatibility but enhances long-term contact reliability.

Q: Does the brass post material on the Aries Electronics connector affect solder joint quality?

A: No. Brass with tin plating (200.0µin thickness) maintains full solder compatibility and mechanical strength equivalent to beryllium copper posts. The tin plating ensures reliable solder wetting and joint formation during PCB assembly.

Q: Are both connectors suitable for high-reliability applications?

A: Both connectors meet UL94 V-0 flammability certification and ROHS3 compliance. The Aries Electronics component specifies a 3 A current rating. Applications requiring specific thermal performance across the -55°C to 105°C range should confirm thermal specifications with the Aries Electronics manufacturer, as this range is not explicitly stated for the substitute.

Q: What is the inventory status of these components?

A: The TE Connectivity 643657-1 is classified as obsolete with 967 pieces in stock. The Aries Electronics 25-0513-10 is active with 935 pieces in stock, providing assured supply availability for new designs and replacement applications.

Q: Are there any packaging differences between the two connectors?

A: The TE Connectivity component packaging is not specified. The Aries Electronics 25-0513-10 is supplied in bulk packaging. Confirm packaging requirements with the supplier for specific application needs.